function copy_from($field, $value, $fieldinfo) {
        $require = $fieldinfo['min_length']  ? 'required' : '';
        $pattern = $fieldinfo['pattern'] ?$fieldinfo['pattern']:'';
        $errortips = $fieldinfo['error_tips'] ?$fieldinfo['error_tips']:'';
        $copy_from_array = json_decode(Yii::$app->cache->get(CacheId::copyFromCacheId()),true);
        if(!empty($copy_from_array)) {
            foreach($copy_from_array as $_k=>$_v) {
                $copy_from_datas[$_k] = $_v['name'];
            }
        }
        $string  =  '<div class="mb-3 row '.$require.'">';
        $string .= '<label class="col-md-2 col-form-label">'.$fieldinfo['name'].'</label>';
        $string .= '<div class="col-md-10">';
        $string .= FormElements::select($copy_from_datas,$value,Yii::t('admin','please select'),"name='info[$field]' id='$field'  $fieldinfo[form_attribute] data-pattern = '$pattern' data-errtips = '$errortips' data-dselect-clearable='true' class='form-select $require'");
        $string .= $fieldinfo['tips']?'<div class="text-muted  input-word-aux">提示：'.$fieldinfo['tips'].'</div>':'';
        $string .= '</div>';
        $string  .= '</div>';
        return $string;
    }